Water → HCID 178438615, Verbindung

HRID 1412518

Reaktionsgleichung

Reaktionsgleichung von HRID 1412518
[OH:1][C@H:2]1[CH2:7][CH2:6][C@H:5]([N:8]2[C:13](=[O:14])[C:12]([CH2:15][C:16]3[CH:21]=[CH:20][C:19]([C:22]4[C:23]([C:28]#[N:29])=[CH:24][CH:25]=[CH:26][CH:27]=4)=[CH:18][CH:17]=3)=[C:11]([CH2:30][CH2:31][CH3:32])[N:10]3[N:33]=[CH:34][CH:35]=[C:9]23)[CH2:4][CH2:3]1.[N+](=[C:38]([CH3:44])[C:39](OCC)=O)=[N-].[C:45](OCC)(=O)[CH3:46].[OH2:51]>C(Cl)Cl.C([O-])(=O)C.[Rh+3].C([O-])(=O)C.C([O-])(=O)C>[OH:51][C:38]([CH3:39])([CH3:44])[CH:45]([CH3:46])[O:1][C@H:2]1[CH2:3][CH2:4][C@H:5]([N:8]2[C:13](=[O:14])[C:12]([CH2:15][C:16]3[CH:21]=[CH:20][C:19]([C:22]4[C:23]([C:28]#[N:29])=[CH:24][CH:25]=[CH:26][CH:27]=4)=[CH:18][CH:17]=3)=[C:11]([CH2:30][CH2:31][CH3:32])[N:10]3[N:33]=[CH:34][CH:35]=[C:9]23)[CH2:6][CH2:7]1

Komponenten

7

Edukt 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 534409222-Diazonio-1-ethoxyprop-1-en-1-olateHCID 178438588HCID 178438588, Verbindung

Produkt 1

HCID 178438615HCID 178438615, VerbindungAusbeute 84 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 168478Rhodium acetateKatalysatorHCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

To a solution of 4′-{[4-(trans-4-hydroxycyclohexyl)-5-oxo-7-propyl-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (0.70 g) and rhodium acetate (dimer, 0.066 g) in methylene chloride (5 mL) was added dropwise a solution of ethyl 2-diazopropanoate (1.0 g) in methylene chloride (2 mL), and the mixture was stirred for 18 hr. Ethyl acetate and water were added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and then with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was crudely purified by silica gel column chromatography. This was dissolved in tetrahydrofuran (5 mL), methylmagnesium bromide (1 M tetrahydrofuran solution, 3 mL) was added dropwise at 0° C., and the mixture was stirred for 1 hr. The mixture was diluted with ethyl acetate and then saturated aqueous ammonium chloride solution was added. The mixture was extracted with ethyl acetate, and the organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow amorphous solid (0.45 g, 84%).

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialwith saturated brine, dried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. customThe residue was crudely purified by silica gel column chromatography
  6. dissolutionThis was dissolved in tetrahydrofuran (5 mL)
  7. additionmethylmagnesium bromide (1 M tetrahydrofuran solution, 3 mL) was added dropwise at 0° C.
  8. stirringthe mixture was stirred for 1 hr
  9. additionThe mixture was diluted with ethyl acetate
  10. additionsaturated aqueous ammonium chloride solution was added
  11. extractionThe mixture was extracted with ethyl acetate
  12. washthe organic layer was washed with saturated brine
  13. dry with materialdried over anhydrous magnesium sulfate
  14. concentrationconcentrated
  15. customThe residue was purified by silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-48e61b3ecf614d558ab7242841afbe92
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08921379B2

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